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Process for improving bright stock raffinate oil production
Process for improving bright stock raffinate oil production
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机译:改善光亮原料提余油产量的方法
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摘要
A process of increasing the production of Bright Stock oil in a lube oil process scheme. Aromatic extract oil (38, Fig.1), after being separated from the extraction solvent, is recycled (40) back to the deasphalter unit (24) and combined with a vacuum residuum (from 20) in 10-20 LV%, based on the total deasphalter feed, prior to deasphalting. After deasphalting and aromatics extraction (32) the absolute yield of raffinate (36) is increased.
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